Crayon holder



Dec. 11, 1934. N. BAFETTI 1,983,728

CRAYON HOLDER Filed Sept. 15, 1933 Patented Dec. 11,1934 I I UNIT-EDSTATES PATENT OFFlCE -.GB.AYON HOLDER.

- Nicolino Bafettl, Chicago, Ill. Application September, 1933, SerialNo. 689,539

1 Claim. (01 120-13) This invention relates to improvements in 13 toprovide for the desired flexibility of the crayon holders. fingers andenable the thimble 11 to be screwed One object of the invention is toprovide a rearwardly of the barrel 3. distance suflicient to holderhaving gripping means capable of firmly effect the clamping of theforward ends of the 5 gripping and holding in writing position piecesfingers upon acrayon of a diameter considerably 5 of crayons ofdifferent lengths and diameters as smaller than the diameter of thebarrel. well as crayons of varying diameters, such as The thimble 11 hasits forward end 17 of a ordinary tapered chalk crayons. diameter capableof accommodating the largest Another object of the invention is toprovide crayon that can be inserted in the barrel 10. a holder which canbe manufactured economi Thus the end 17 preferably is of the same diam-10 cally of relatively few parts. eter as that of the barrel stock. Thethimble Other objects relate to various features of conhas a tapered or'frusto conical clamping sec struction and arrangement of parts whichwill tion 18, preferably an intermediate knurled secbe apparent from aconsideration of the followtion 19, and a rear threaded section 20. Theing specification and accompanying drawing, internal diameter of thesection 19 is great wherein enough to be moved over the lugs or threads14 Figure 1 is a longitudinal sectional view of a when the fingers 16are parallel, that is, when crayon holderembodying the presentinvention, the fingers are engaging the large end of a craythe small endof a tapered crayon being shown on of maximum diameter as shown inFigure 2. 20 in writing position. The threads 20 are adapted to engagethe thread- 20 Figure 2 is a longitudinal section of the holder edsection 13 for drawing the thimble upwardly with the large end of atapered crayon being or rearwardly of the barrel, during which moveheldin writing position. ment the conical portion 18 of the thimble en-Figure 3 is a broken view of the forward end gages the lugs or threads14 and compresses of the tubular barrel of a holder. the fingersradially inwardly against the crayon. 25

Figure 4 is a longitudinal sectional view of a It will be noted inFigure 1, where the small clamping thimble. end of a tapered crayon isshown in writing posi- Figure 5 is an elevation of a thimble. tion, thatthe thimble has been advanced up- Figure 6 is an elevation of a modifiedform of wardly or rearwardly of the barrel until the ends barrel. I ofthe fingers project from the thimble. 30

In the drawing the holder is shown as com- It will be seen that the lugsor corrugations 14, prising but three parts, namely a tubular barrelbearing against the inner surface of the tapered 10, a clamping thimble11, and'an end cap 12 section-18 of the thimble, effect the radialcomthreaded to the upper end of the barrel. pression of the fingers to agreater extent than The barrel 10 preferably is of metal and has wouldbe possible were the corrugation not pres- 35 pressed outwardly thereofa section of threads ent. In Figure 2, where the large end of a short13. By pressing the threads outwardly they form crayon is held inwriting position, the thimble is no constriction in the interior of thebarrel and shown as projecting beyond the ends of the finhencethe-tubular stock of which the barrel is gers, The lugs 14 areaccommodated by the 40 formed need be of no greater internal diameterlarger diameter of the thimble, while the forward 40 t a e ma diameter ot yo t e ends only of the fingers l6 engage the crayon. used in theholder. The threaded section 13 Th n 17 M1 thi being large enough onlyconstitutes a continuation of the similar threadto permit passagethrough it of the large end of ed section 14 but as the latter sectionusually the crayomthe latter willbe supported adequately functions asmere lugs or corrugations to inwhen only a short piece remains as shownin 45 crease the degree of clamping movement of the Figure 2. When tooshort to be held by the holder, device, the two groups have been givendistinthe stub can be removed by retracting the thimble guishingnumerals for the purpose of clarity of and another crayon inserted orfed down from description. the barrel which comprises a crayon magazine.The forward end of the barrel 10 is provided It will be seen that thelugs or corrugations 14 with a plurality of slots 15, preferably four inincrease the degree of clamping action of the finnumber, to provide asimilar number of clampgers, thus rendering the present holder capableing fingers 16. It will be noted that the slots of firmly holdingcrayons of different diameters 15 extend from the forward end of thebarrel, as well as tapered crayons.

I 55 through the corrugations 14 and to the threads By pressing thethreads 13 outwardly f the barrel, and by having the end 1'! of thethimble at least as great as the internal diameter of the barrel, acrayon of the largest size that can be inserted in the barrel can beslid between and clamped by the fingers in writing position.

In Figure 6 the modification consists in forming only a few lugs,corrugations, or threads 21 at the free ends of the fingers andproviding unthreaded sections 22 at the upper portions of the fingers.This renders the fingers slightly more flexible and thus slightly lesseffort is required in screwing the thimble into clamping positionbarrelbetween the two extreme positions shown,

is relatively short, due to the provision of the expanded portion of thethimble which accommodates the fingers when a crayon of large diameteris used and the relatively rapid compression of the fingers which occurswhen the thimble is screwed upwardly. Thus just a. few turns of thethimble are necessary in clamping the small end of a crayon in positionafter discarding the large end of a previous crayon.

While I have shown and described certain em bodiments of my inventionfor the purpose of illustration I do not wish to be restrictedspecifically thereto except as so limited by the appended claim.

I claim:

A crayon holder comprising a tubular barrel having its lower end slottedlongitudinally to provide a plurality of radially flexible fingers, thelower ends of said fingers being provided with a plurality of transversecorrugations on both the outer and inner surfaca thereof, said outercorrugations extending outwardly beyond the original outer surface ofthe barrel, a portion of said barrel adjacent the upper ends of saidfingers being threaded, and a clamping thimble having a frusto-conicalportion provided with an p nin at the lower end,'said thimble having theupp portion thereof threaded for cooperative engagement with the threadsof said barrel and having a diameter suflicient to accommodate saidcormgated fingers whereby the large end of a tapered crayon can bepositioned between the lower ends of said fingers for engagement by thelower inner corrugations thereof as the thimble is screwed rearwardly ofthe barrel to cause said conical portion of the thimble to engage theouter corrugationsof' the fingers and compress the same ra-- dially toforce the lower inner corrugations into engagement with the crayon, thethreaded portion of said thimble being of such length that said thimblecan be movedrearwardly of said barrel sufileiently to cause the forwardends of the fingers to project from the thimble and be compressed by thecoaction of one or more of said .outer corrugations and the lower end ofsaid thimble into gripping relation with the small end of a taperedcrayon.

' NICOLINO BAFETI'I.

